Improved machine foe making butt-hinges



4 Sh eets Sheet 11.

A. RAIS. MACHINE FOR MAKING -'BUTT HINGES.

' Patented June 25, 1867;

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wv'nesses THE mums PTER co; FHOTDUYNO, msumoron. n. c.

4 sheets-sheet '2. A. RAIS. MACHINE FOE, MAKINGz BUTT HING'BS.

No. 66,172. Patented June 25, 1867.

4 Sheets-Sheet 3. A. RAIS. MACHINE FOR MAKING BUTT HINGrES.

N6. 66,172. 4 Patented June 25, 1667.

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4 Sheet;sSheet 4.

A. RAIS. MACHINE FOR MAKING BUTT HINGES.

| no. WASHINGTON o c 'nitrh tstesga @ffim' ADRIAN RAlS, OF WATER-BURY, CONNECTICUT, ASSIGNOR TO SCOVILL MANUFACTURING. COMPANY, OF SAME PLACE.

Letters Patent No. 66,172, dated Jane 25, 1867.

IMPROVED MACHINE FOR MAKING BUTT-HINGES.

TO .ALL WHOM IT MAY. CON CERN;

Be it known that I, ADRIAN RAIS, oi Waterbury, New Haven county, Connecticut, have invented a new. and useful Improvement in Machinery for Making Butt-Hinges; and I do hereby declare that the follawing is a full, clear, and exact description thereof, which will enable others skilled in thc art to make and use the same,

reference being had 'to the accompanying drawings, forming part of this specification, in whichv I Fig fire 1, Sheet 1, is a plan or top view of my improved machine for bending the knuckles of blanks for making butt-hinges.-

Figure 2, Sheet 2, is a side elevation on the right'hand, looking from the head or feeding end of the machine.

Figure 3 is an elevation of the opposite side. 7

Figures 4, 5, and 6, Sheet 4, are details of the feeding-box C.

Figure 7,:Sheet 4, is a'longitudinal vertical section of the block H, showing its connection with the clamping-guide H. i i I I Figures 8 and 9, Sheet 4,;ar'e sectional views of the bending-die c, in the sliding-bar c, and the parts connected, showing. the operation of turning up the edge of a blank.

Figures 10 and 11, Sheet 4, aretop and end views respectively of the feeding-slide 5.

Figures 12 and 13, Sheet 4, are side and end views respectively of the feeding-slide b.

Figure 14, Sheet 4, is'ayiew of a butt-hinge plate cut into match-blanks or skeletons.

Figure 15, Shest'4, is a view .of 'onesidg of the match-blanks. i I

Figure 16, Sheet 4, is anedge view of a blank turned up at the edge by the first operation of the die a, nreliminary to the bending of the knuckle. i I v 'Figure 17, Sheet 4, is an edge view-of"the same, after the knuckle is bent.

Figure 18, Sheet 4, is a central vertical longitudinal section of the compound slide K. showing the retractorspring 'm in the interior.

Figure 19 is.a cross-section of the same, taken in the line yy, fig. 18.

Figure 20 is rear end view of the same.

Similar letters of reference indicate corresponding parts. 7

This invention relates to an improvement in machinery for bending the knuckles of butt-hinges by means of a single die, at oneopcration, instead of twodistinctoperations with separate dies, thereby simplifying the mechanism and manufacturing hinges more rapidly and economically.

My improvement consists in connecting a single bending-die with co-operative machinery in such a manner that the blanks or skeletons of butt-hinges shall be regularly and successively delivered by feeding apparatus from a hopper or feed-b0); to the front of the die, where, by one movemcnt,.the blank shall first receive the pressure on its edgc,-to turn it up by the die, and then, by another movement, the blank shall receive pressure against the die, which will continue the bending thus first started on the edge,- until the knuckle is entirely formed, ready to make the hinge-joint, at one single operation.

A is the frame or bench; B, the driving-pulley or-gcar, hung on the horizontal shaft it, that extends across the rear or tail end of the machine. At the head of the machine is placed a vertical hopper or feed-box, 0, formed of four plates, 1, 2, 3, and 4, fastened together with screw-bolts, in such a manner that the area ofthe feed-box may be diminished or enlarged for rcceiving hinge-blanksof different sizes, as shown in place, figs. 1, 2, and 3, and in detail, figs. 4, 5, and 6. Under the feed-box O is a horizontal side-plate,b, the extreme end of which lies close to the bottom of the box, and supports the blanks piled fiat within the feed-box, until the sideplate is moved forward far enough to receive one blank in an ofl'set cqunl to the thicknessof the blank, which is then drawn irom'undcr thc-fccd-box bythe backward movement of the "slide-plate 6 into position opposite another slide, 6', that works at right anglbs to the slide-b, and pushes the blank across the bed of the machine to position opposite the bending-die c, as shown in place, figs. 1 and 2, and in detail, enlarged, figs. 8 and 9, and hereinafter described. The two feeding-slides II are operated by two cams, d c, placed on .the outer'end of the driving-shaft a. The cam d is heart-shaped, and works against the friction-roller d, to move the feeding slidc -plate 6 forward under the feed-box C, torcccivc a bl ank'-the backward movement of the slidemlatc. b,

for drawing the blank from under the leed liox, to place it into position opposite the slide 6, being OliLUl'Oll by a spiral spring, d, that retracts with the slideasfast as the return movement of the cam d will allow, as shown in place, figs. 1 and 3, andin detail, figs. 10 and 11, sheet 4. The other cum, 0, is a side cam, \\'hich works against a friction-roller, c, placed on one end of a side lover, I), to push it outward, in order to push the fccdingslide b forward, with a blank, into position opposite the die 0; the backward movement of the-slide 6 being ellected by a flat bent spring, c, which pushes back the outer end of the lever D, with the slid as fast'ns the return. movement of the side cam 0' will permit, as shown also in figs. 1 and The steel bending die t is fitted in the upper end of a vertical sliding-bar, c, passing down through the bed of the machine to the underside, where it connects with the cadet a horizontal arm, E, on a rock-shafh f, on whichalso, in the same line, is another; arm,E, constituting in fact, one-straight lever, having the reek-shaft for its fulcrum. The arm E" is moved by a round cam, a, having one segment projection, which depresses the arm slightly at every'revolution of the driving-shaft a; on which the cam is placed for the purpose of raising the sliding-bar c with the arm E, and thus pushing up the die c'above the bed of the machine, to turn up the edge of the blanks and perform the first part of the operation of bending the knuckle, and holding the die stationary till the knuckle is"ben't, as hereinafter more particularly described, and .as shown'in place in fig. 2, and in detail, enlarged, in figs. 8 and 9. And under the arm E is a flat spring, g, fastened to the side of the frame A, which bears the arm close against the cam a, for the purpose of raising the arm E and dra'w'ingxdown the slide-bar c, to bring the die below the bed'ofithe machine. Another cam, if, made like the cam a and placed by the side of it, having also a single'projeetiiin nearly opposite to the projection on the earn a, works against the-outer end of a horizontal arm, F, fastened to a roekrshaft, f, which is mounted on studs h h, at the tail end of the machine, and which, is connected with and operates 'the presser or clamping-gauge H. At the opposite end of the machine, by means of the arm F and pitman g, the gauge H bears down upon the blank, and holds it firmly in place while the edge is turned up, and then guides it while the bending of the knuckle is completed, as shown in place, fig. 2, and enlarged details, figs. 8 and 9. The clamp-gauge H is hinge-jointed to an adjustable block, H, fastened at the head of the machine. When the arm F is raised by'the cam a, the clamp H is pressed down to pinch the blank, when the die crises to turn up the edge, as before described and shown clearly infig. 8, sheet 4 butthe instant this is done the clamp ises slightly and releases the blank, to allow itto be pushed forward to finish the knuckle and act asa guide during the operation of bending. The clamp H is thrown up by aspiral spring, 0 thatli'e'ars on the under sidcfas seen in .fig; 2, to release it. For pressing the blanks into the die, two cams or eccentrics, k k, fig. 1, are placed on the driving-shaft (1 within the framing, both of which cams work against a horizontal compound slide, K, placed in the middle of the bed of the machine. The cam le'makes the first movement with every revolution of the shaft, and pushes the slide K forward with the blank just far enough into the die a for it to catch the edge and turn it up when the die rises, which movement is followed up by the action of the cam is on the slide K, to press the blank into the die and bend the knuckle completely, as shown clearly in fig. 9, sheet 4. The slide K is providedwith a spiral spring, m, as shown in figs. 18 arid 19, sheet 4, by which it is drawh back to its original position the instant the. bending operation is finished. All parts of the machine are provided with adjusting and tightening-screws for effecting the nicest and most positive movements, and for adaptation to hinges of different sizes. The side plates 1, 2, 3, and 4 of'the feeding-box C have setscrews passing through slots, by which they maybe set nearer or further apart inside to admit hinge-blanks. v of different sizes,.whe n required, as shown clearly-in the drawings. 1 The feeding slide-plate b is also provided with set-screws for adjustment. The transverse feeding-slide b is made adjustable by a set-screw, which secures it in a slot, n, in the end of the lever D, seen in fig.-'1.. On the upper side of the arm E is a fiat plate, that is pressed higher or lower by a set-screw intheend of the arm, to bear against the cam a, and thus adjust the operation of the arm E, forv raising and lowering the die 1; exactly. And on the under side of the arm]? is also a similar plate,p', pressed against the cum a 'bya set-screw in the end, for the purpose of adjusting the movement of the clamping-guide H, which is also regulated by. screw in the end of the pitman G, where the upper end of the guide is pivoted in a slot. The clamp-guide-H is further adjusted by means of a set-screw .in the end of the block H, to which the rear end of the clamp is jointcdi Thus every part of the machine may be perfectly adjusted; The compound slide K is made iii two main parts, which are connected by adjusting-screws 1 1*, similarto the clamp-screws'used by cabinet-makers,- by which the slide is accurately regulated in its movement for pushing the hinge-blank up to the die for bending the knuckle. I

The operation of. the machine as a whole, is as follows: The hinge-blanks are placed in the feeding-box O Y in a pile horizontally, with the lower plate resting on the slide 6. The slide-plate 6 carries a blank opposite the slide b, which' pushes it across the bed of the machine to'a position opposite the die c, where the blank first receives a slight push forward by the slide K-partly into the die, which at that moment is sunk below the bed of the machine. The clamp-guide Hthen by a simultaneous movement bears down upon the blank the instant it advances for enough, and holds it fast, while at the same time the die a rises and turns up the edge of the blank, to prepare it ferthe next operation, which, is' maile by the further progressionof the slide K, which presses the blank directly into the die, to give the knuckle the finishing turn, thus performing the bending of the knuckle of a hinge-blank at one operation withone die, by continuous and simultaneous movements of the several parts of the mechanism hereiubef'ore described.-

I am aware that-the knuckles of butt-hinges have been previously beat by machinery, but the operation of I the machinery is did'erent'frmn that of my invention. .By the old method the knuckle is bent in twodistinct and separate operations by two different dies, one of which first performs a part of the bending aml'the other finishes it. The blank after being acted on by one die is transferred by machinery to be acted onby the other die to complete the bending, and this movement of thc'blank from one position to another is attended with liability to become slightly displaced, so that the knuckle, which requires the greatest nicety in bonding, is often malformed and the blank damaged and wasted. Another disadvantage of bending the knuckle in two separate operations arises from the fact tha't certain kinds of hinges cannot be made in this nizinner on :aeeount of the liability to derangement in position by being moired from one die to another, whereas by my improved machinery for bending knuckles at one operation withn single die, strap and 'other irregularly-shaped hingescnn he made by it as well as the'eommon rectangular butt-hinge.

I therefore disclaim the bending of knuckles of hut't-hinges by separate dies in two operations, and the machinery for aecomplishing'this object in thismunner; but having described the ee strnetion and operation of iny invention, \vhzit Ielaim as new, and desire to secure by Letters Patent, is-.

The combinatio n of the single bending die, the clamping-gauge, the cams, the rook-shafts and their arms, the pitman, the feeding apfiarutus, and the pushing slides, or their equivalent-s, or either of them, the said eon]- hination Being organized substantially as described.

ADRIAN RAIS.

Witnesses:

O. P. Gos's, MARK L. SPERRY. 

